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23 October 2023  Amanda J. Brook  Senior Product Manager
 

Summary
Learn how to fix the error 0x800703e3 during Windows update with these tried-and-tested solutions. Protect your data with our expert advice on backing up important files to avoid computer failures and potential data loss. Trust us to provide authoritative insights and practical solutions.



Table of contents

table iconI. How to fix the 0x800703e3 error code?
table iconII. (Extended information) Use Renee Becca to back up important files
error 0x800703e3

I. How to fix the 0x800703e3 error code?

Windows update error 0x800703e3 can be caused by improper system configuration, irregular entries in the Windows registry, failed Windows update, corrupted system files, etc. You can try updating Windows manually, resetting the Windows Update service, and resetting the computer using the Windows Setup tool to resolve the issue. The following will introduce the specific operation steps.

1. Manually update Windows

Step 1: Start your Windows computer, click (Start) > (Settings) > (Update and Security).
windows updates and security
Step 2: Click (View Update History) in (Windows Update), if you can find a Windows update item with a problem, such as a driver update error, you can go to the official website of the target device to download the corresponding driver and install it to try to solve the problem. Alternatively, you can click here for the official instructions for downloading updates from the Windows Update Catalog.
view Windows update history

2. Reset Windows Update Service

Step 1: Right-click (Start), select (Run), then type (cmd) and click (OK) to open the Command Prompt window.
press win and r to run cmd
Step 2: Enter the following commands in sequence to stop Windows update-related services, and press the (Enter) key after each command.
net stop wuauserv
net stop cryptSvc
net stop bits
net stop msiserver
Next enter the following commands to rename the SoftwareDistribution and catroot2 folders, pressing the (Enter) key after each command.
ren C:\Windows\SoftwareDistribution SoftwareDistribution.old
ren C:\Windows\System32\catroot2 Catroot2.old
Net stop wuauserv related commands
Step 3: After completing the above operations, continue to enter the following commands to restart the Windows update-related services, and press the (Enter) key after each command. After all commands are executed, restart the computer to check whether the current problem is resolved.
net start wuauserv
net start cryptSvc
net start bits
net start msiserver
Type net start wuauserv

3. Reset the PC via the Windows installation media

Step 1: First, make Windows installation media. Then insert the Windows 10 installation disk (DVD or USB) into the computer that needs to be reset. Continuously click F2 or F10 or DEL or ESC shortcut keys (varies with the computer brand) to enter the BIOS setting interface when starting up, set the first boot sequence to the Windows installation disk, and then save the settings to make the computer start from the installation disk and install Windows. Select the (Repair Your Computer) option on the program’s “Install Now” interface to enter the recovery environment.
Repair your computer
Step 2: Then when “Choose an option” appears, click (Troubleshoot) > (Reset this PC). The Reset This PC feature allows users to keep or delete personal files and then reinstall Windows.
click to format windows computer or nec laptop
Step 3: Next, choose (Keep my files) or (Remove everything) according to your needs.
Remove everything in Windows 10
Step 4: After the computer restarts automatically, please click to select an account name. Then enter the account password (no need to enter if there is no password), click (Continue).
Select account operation
Step 5: After confirming the reset information, click (Reset). The computer will automatically restart and initialize the system. This process may take a long time, please wait patiently.
confirm to reset this PC
The above is the repair method of 0x800703e3 error code, I hope it can help everyone. Although resetting the computer can solve many system problems, all personal files may be lost due to misuse during the process of resetting the computer. Therefore, it is recommended that you back up important files before resetting or when using the computer daily. A fast and practical backup method, friends in need can continue to look up.

II. (Extended information) Use Renee Becca to back up important files

1. What is Renee Becca

Renee Becca is a tool specially used for system/hard disk data backup and restoration. This software adopts leading incremental/differential backup technology, which can save you more time and disk space. It can not only help you easily backup and restore important data in your computer, such as programs, system configurations, emails, photos, videos, documents, bookmarks, etc.; it also provides system backup, partition backup, hard disk backup and disk cloning. It has many functions including system migration, and the operation is also very simple.
Renee Becca - Quickly and safely back up SD card data

Fast backup Backup speed up to 3 000MB/minute

Support multiple SD cards Backup data of SD card, SDHC card and SDXC card

Incremental/differential backup technology Automatically analyze data differences between source files and backup files to save disk space

Multiple backup schemes Support system backup/partition backup/hard disk backup/file backup/disk cloning

Easy to use Even newbie can handle it in seconds

Fast backup Backup speed up to 3 000MB/minute

Support multiple SD cards Backup data of SD card, SDHC card and SDXC card

Easy to use Even newbie can handle it in seconds

Free TrialFree TrialAlready 2000 users have downloaded and try Renee Becca

2. How to use Renee Becca to back up important files?

The operation of Renee Becca backup files is very simple, and it can be easily completed by following the steps below.
Step 1: Download, install and run Renee Becca on the computer, and select the File Backup option in the main interface Backup column.
File backup of Renee Becca
Step 2: Next, select all the files that need to be backed up, and select the hard disk partition where the backup data will be stored in. If you want the data to be more secure, you can store the backup file in an external in the hard disk. If you need regular automatic backup, you can open the task plan and select the appropriate backup function, that is, make a daily/weekly/monthly automatic backup plan in Schedule and click OK to enable the automatic backup function, and then Select the appropriate backup mode in Backup Scheme.
how to back up files in renee becca
Step 3: Finally, click the Backup button to start executing the backup file command according to your settings, and you can see the progress of all backup tasks on the taskbar. After the backup is complete, you can click the Recovery button to restore the file to the specified disk when you need to restore the file.
restore the backup
Step 4: After that, select the location where the files are to be restored, and click the Recovery button.
files recovery location